A feud between Tesla Inc TSLA CEO Elon Musk and President Donald Trump escalated Thursday with comments made in interviews and across social media.The fight sent shares of Tesla lower Thursday and the stock could go lower with the potential for Trump to harm the electric vehicle sector and the company.What Happened: Musk's opposition to the "Big Beautiful Bill" saw Trump accuse the Tesla CEO of only speaking out in opposition due to the bill hurting EV tax credits and his own company.A series of back-and-fo ...